Know all about Teschenite and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Teschenite belongs to Igneous Rocks while Greywacke belongs to Sedimentary Rocks.Texture of Teschenite is Phaneritic whereas that of Greywacke is Clastic. Teschenite appears Veined and Shiny and Greywacke appears Dull. The luster of Teschenite is not available while that of Greywacke is dull. Teschenite is available in dark grey to black colors whereas Greywacke is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Teschenite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.